Lasting machine



Sept. 8, 1953 R. 1.. HILL in AL 2,651,063

LASTING MACHINE Filed March so, 1950' 4 Sheets-Sheet 1 In vemom R. L.HILL ET AL LASTING MACHINE Sept. 8, ,1953

4 Sheets-Sheet 2 Filed March 30, 1950 2 37 mfw 1% n /a mi 2 Sept. s,1953 R. HILL ET AL 2,651,063 I LASTING MACHINE Filed March 50, 1950 4Sheets-Sheet 5 {'9 Invenzors Roscoe LHL'ZZ Pobert l l/freland B if) Afi'5 car Qrng Sept. 8, 1953 R. HILL El AL 2,651,063

' LASTING MACHINE .Fild March so, 1950 4 Sheets-Sheet 4 Patented Sept.8, 1953 UNITED STATES PATENT OFFICE LASTIN G MACHINE Application March30, 1950, Serial No. 152.876

9 Claims. (CI. 17.5-12.4)

This invention relates to lasting machines and more particularly, insome aspects, to machines for lasting the toe ends of shoes. Theinvention is herein shown as embodied in a machine the construction ofwhich is in many respects such as found in bed-lasting machines of awell-known type exemplified by the disclosure of United States LettersPatent No. 1,018,477, granted on February 27, 1912, on an application ofMatthias Brock, but it will be understood that it is not lim ited tothis illustrative embodiment.

In the use of a machine of the above-mentioned type toe-embracing wipersare moved upwardly to wipe the toe-end portion of the upper heightwiseof the last by movement of a doubleacting treadle in one direction whilethey are held by the operator in effective wiping engagement with theupper through a hand lever, and thereafter by this hand lever they arefurther advanced and closed to wipe the marginal portion of the' upperinwardly over an insole on the last. Each of the above operation may berepeated one or more times until conditions are satisfactory to theoperator. After the wipers have thus wiped the upper inwardly over theinsole they are forced down on the shoe bottom to apply compactingpressure to the overwiped marginal portion of the upper by reversemovement of the double-acting treadle. It has been found advantageousfor the operator thus to have full control of the wipers in wiping itheightwise of the last and inwardly over the insole, so that he mayobserve the results as the lasting operation progresses'and may subjectthe upper to such special treatment as may be required. After the inwardwipe, however, the application of increased pressure to the upper is nota critical operation, but requires only the use of substantial force.The present invention accordingly provides novel means whereby theWipers are operated by power to apply their compacting pressure to theoverwiped marginal portion of the upper, but are nevertheless under suchfull control of the operator as he has exercised heretofore in thewiping of the upper heightwise of the last and inwardly over the insole.For the purpose in view, the construction herein shown includes afluid-operated piston which is rendered effective thus to force thewipers down on the shoe bottom by fluid pressure in response to reversemovement of the above-mentioned double-acting treadle after the wipershave been moved upwardly by the treadle and have been operated to wipethe upper inwardly. Preparatory to this action of the piston it is movedupwardly with the wipers 2 as the wipers are raised by the treadle towipe the upper heightwise of the last. To relieve the operator, however,of the necessity of thus raising the piston by the treadle againstresistance of the operating fluid, which would require the applicationof considerably greater force to the treadle and would render itdifiicult to control the wipers as desired, provision is afforded forraising the piston instead by fluid-pressure but under such control thatits upward movement is an idle movement without any effect on theWipers. More particularly, the construction shown includes a valvemounted in the piston for upward movement by the treadle to initiate theupward movement of the piston by the fluid and further movable upwardlythereafter with the piston to cause the piston to continue its upwardmovement and means affording provision for lost motion between thepiston and the wipers to permit limited upward movement of the pistonrelatively to the valve, the piston having means arranged to cooperatewith the valve to interrupt the flow of the operating fluid actingthereon within the range of such lost motion and thus to prevent anyeffective action of the piston on the wipers. 1

The above and other features of the invention, including various noveldetails of construction and combinations of parts, will now be moreparticularly described with reference to the accompanying drawings andthereafter pointed out in the claims.

In the drawings,

Fi 1 is a view in front elevation of the machine in which the inventionis herein shown as embodied, parts being broken away;

Fig. 2 shows a portion of the machine in lefthand-side elevation;

Fig. 3 is a plan view of a portion of the machine, showing the toewipers in positions'over the shoe bottom;

the, upward movement of the toe wipers; and

Fig. 8 is a view similar to Fig. 7 with the parts in the relationassumed when the wipers are to be forced downwardly on the shoe bottom.

The machine includes a frame '2 on which is without any heel-lastingmeans, and it will he understood that, similarly to the disclosureaofthe above-mentioned Letters Patent, it is swung rearwardly to anadjustably predeterminedepo sition when the machine is -to operate onaright shoe and forwardly to"the appropriate position when the machine isto operate on a left shoe.

Secured on the casting 6 in fixed relation thereto is another casting 8which, through" means hereinafter described, supports a heel hand I0for-"embracing and clamping th'e shoe' about its heel ends- The shoe issopportedsat' itsheel end on a rjack 'lz inclsuding 'a ui-shap member 13one-orthe armsoi which' has a-'hori zontal extension I 4 -"guided"for-movement's in: directions lengthwise 1 ofthe :shoe m the wasting- 6.This extension I has on-its upper 'fabe rack teeth 16 engaged"bya-piniori' l 8 which': is rotaF- table on thecastingt andis-tu-rne'd' by'aha-nd' lever 20 'to-efiect a-preliminary adjustihent ofthe jack relatively to 'the heel band I01 A spring-pressed pinzzziomtnehenuuever is ar-- ranged to enter anyone ofa plurality ofholes-- Z l'in the casting-8 to'retain the jack iri-adjusted' position.The adjustment:.. 1 preferably, SUCH that when the'shoe -is firstmounted on the jack there is substantial clearance =betvl een 'its heel"end face and'the intermediate portion of the open band I asillustratedi1i*1 *ig.=42 'Ilile left mounted therein anupwardly-*extending' post- 2 G' which, similarly to the "post w showminLett'ers Patent-=No;' 373,482, granted-ion -April 5, 19.22 on anapplication -of Matth-ias Bfbcki can-tip yieldingly in directions'wi'dthwise of i the shoe against the resistance of opposed leafsprings' 'on the member"! 3, one of -thesesprings being shown at 28.Pivotally mounted on a' pin 3lf in thepost 2E to tip directilz nswicitliwise of tlieshbe relatively to the'postdsablock 32 h is. -yie1CI-ingly controlled at: its lower end ya spring pressed pin (not shown)acting similarly-tonne member i9 shown in Letters Patent NOZAIJZS-ZSGS,granted on February 16; 19-151 on' an application of J. Fausse: In the'construction herein 'showrr there is pivotally' mount'ed fon'i the-block -fl to: swing about a .pin 34 extendingewidthwisapi the shoe ablock 35 provided with an upwardly ex tendinglast pin"38 arranged'toeriter the usual spindle .hole': in? .the- -=heeli end of t th'e lastispring 4!! connected to the post 25 and the*b1ock 36 tends to swing th'eb1ockan d the last pin '38 in a clockwise "direction as vie wed in Fig:1 "and holds them initially'in "positions-determined by V a stop screw42 Whichis threaded"in"th block 35 and is arranged to bear against theupper end of the post 26.

The intermediate portibnpfthe'heehband I 0 is secured to a-h0lder"44-(Fig; 4)""havinga-stein 46 held by a setscrew Ml in' a yoke-'shaped-memher 50." This member is secured "murmur to J a plate 52 (Figs5) guidedfor movements-in directions lengthwiseoathe shoe-in the'casting 8;Secured by screws 54' tothe' plate" 52 tc'rmove ingly mounted a rod 58.Pivotally mounted on a stud 60 on the left-hand end of the rod 58 is acrossbar 62 the opposite ends of which are con nected by links 64 toslide bars 66. These slide bars are guided in recesses in the oppositeends of the yoke member 50 and at their left-hand ends are'pivotallyfconnectedby pins .-s's':?to levers 'lfi in 'locationsbetweenthe -'ends of the levers. The inner ends of the levers are pivotallyconnected by pins 12 to blocks 14 fast on the oppo- SitB-SidGS-Of theheel band In and their outer ends areco'nnected to springs 16 which tendto swing the'ini inneie. ends-: inzzdirections toward the toe end efithaslioe. Formed on the slide bars 66 arecam faces'l ranged to beengaged by abutmerit feices 'au on the yoke member 50 to closethe=heel1ebandeinwardly against the sides of the shoe in response tolengthwise movements of the slide bars relatively to the yoke member, inwhich operation the levers 10 are swung about the :pinafi 8 againsttherzresistance of the ssprir'igs 163:: Such: lengthwise :movementsof':the:- slide: barsffare-zefieeted byymoviiigg the" rod 58' toward: thedeft relatively: .to .the block :56- and the plate 52.:to.whichnthesyolre member" 50 is. secured; Priors-to ;this -operation,however," the heel band" is: moved bodily. lengthwise of the shoe toseat it firmlyr'against the fhe'el-endtface of= the. shoeby movingtheblock56-':with the rod 58. For this" purpose ztherec-is'.:mounted 'ontherod; between the block 56 and amember- 82 fast on the right handnend-ofthe rod; arr-compression-springs-84. Themember- 82 acts' through thespring 84 thus to move the block 56 untilfurtherbodilyi move mentor: the'heelband is prevented by the shoe, 1 after? whiclrthe spring yields and:furthermove-"- ment' of :the member 82 serves to move the rod 58relativelyt-"to the block: 56" to close :the heel band;:. To operatethe-member 82 it has extend ing througlr itra;rod-85-:(Figs. 1 aud t)onwhic-h is mounted acompression spring 88 located .be k tweenrthe:member" 82- andaa :plate 90- confined: onithez'right hand end 'of therod by a nut 92;: l A head 94-formed .on-the left-han'd I end of'thetrod engages the memberr82* to limit: expansion :of the spring-rPortions: of: thH'TOd-x and the springzare I broken awayimFigsa: lands.The head-94 cm? the rodaisiconnected by a :lihk 96 :to athe' upper.

end offa lever BS-Whichis pivotally mounted on the-casting hand hasazsdownwardly extending 1 arm Hill-engaged "by oneaend ofla' push :rod102;

The othera'end of: this-push?rod=is engaged and operated-abyzauleyer I04pivotallymounted ion: a i pin I06 on the casting 6. This-lever is apoweroperated lever; :but the mechanism, including a cam, for.operatingit; '.is' not herein shown, since it: i-is-tof': the sameconstruction as mechanism provided :heretofore in machines of'the typeshowniin Letters Patent No. 1,018,47Tfor closing ,the heel band, asdisclosed especially in Letters Patent No. r 1,417,493, 1 granted on Mayso; 1922, on 'an application of Matthias Brock. The lever i0'4corresponds to the lever'122 in'the last-mentionecl "Letters Patent;It will be understood thitt-thespring 88 is stronger than the spring 84and'mayyield only in'response to "resistanceof the shoe to the closingof the heel band. The 1e'ver"98 is' operated against the resistance of areturnspring H38" whichassists in returning parts operated by the leverto their initial positions; are returnedby the head 94' of the rod'BB,and

the block '56 -'is" returned by engagement'ofthe crossbar 62 therewith;

The toeend of the-shoe is-supp-ortedon' a 'toe That is; the member 82and the rod 58 rest I I mounted on the upper end of a vertically movablerod II2, this rod being supported at its lower end on a member II 4corresponding to the member 22' shown in Letters Patent No. 1,018,477.By means of a power-operated cam (not shown), which corresponds to thecam 180 shown in Letters Patent No. 1,417,493, the memher 4 is movedupwardly to elevate the toe rest a predetermined distance in timerelation to the operation of the heel band I 0. In this manner the toerest cooperates with the heel band in jacking the shoe and inpositioning the toe end of the shoe heightwise in proper relation to thetoe-lasting means. It will be understood that as the parts are shown inFig.- l the jacking of the shoe and the operation of the heel band havenot as yet taken place.

When the heel band I0 is moved bodily as hereinbefore described to seatit against the'heelend face of the shoe it imparts a short lengthwisemovement to the shoe to cramp the heel pin 38 in the spindle hole in thelast, the heel pin swinging about the pin 34. This oauses'the heel pinto'assist in holding the shoe firmly against any upward movement of itstoe end in the toelasting operation. To afford additional insuranceagainst any displacement of the shoe lengthwise in a heelward directionin the toelasting' operation, mechanism is provided for positivelylocking-the heel band against retractive movement. For this purpose apair of pawls II6 (Figs. 4 and arranged in staggered relation arepivotally mounted on a pin I I8 supported on a block I20 which issecured to a top' plate I22 on the'casting 8. A spring I24 tends toswing the pawls downwardly, and forthe purpose in view they are arrangedto engage teeth I26 formed on a plate I28 which is secured by the.

screws 54 to the plate 52. Each pawl is provided with a roll I30arranged to rest on the top face of a horizontal bar I32 slidinglymovable in a guideway in the block I20 and secured at its right hand endto the previously mentioned plate 90 which is carried by the rod 86. Byengagement of the top face of the bar I32 with the rolls I30 the pawlsare held initially upraised, as shown in Fig. 5, but as the bar is movedtoward the left in the operation of applying the heel band to the shoeinclined faces I34 on the bar arrive in positions under the rolls I30and permit the pawls to be moved downwardly into engagement .withtheteeth I26. It will be understood that inthe return of the parts tostarting positions the pawls are disengaged from the teeth by theinclined faces I34 to release the block 56.

The toe-lasting mechanism includes toe-em bracing wipers I36 (Fig. 3)which are advanced and closed about the toe by a hand lever I38 in thesame manner as in prior machines of the type shown in Letters Patent No.1,018,477.

Means provided for adjusting these wipers in various ways are alsogenerally the same as heretofore in such well-known prior machines andneed not be described in detail. The wipersand their adjusting means aresupported by a bed plate 140 formed on the upper end of a slide I42vertically movable in a guideway in the frame. Downward movement oftheslide I42 is limited by engagement of the bed plate I40 with a stopplate I43 secured to the frame. For moving the wipers upwardly to wipethe toe end of the upper heightwise of the last the slide I42 is raisedby for the convenience of the-operator, .it' is. so

by an electric motor I95.

of the machine instead of parallel to the front of the machine. Thetreadle is fast on a rockshaft I46 which carries a small lever I48connected by a link I50 to another lever I52, this lever being connectedto an upwardly extending link I54. Since the treadle-operated means formoving thewipers upwardly is associated, in the machine herein shown,with fluid-operated means hereinafter described for forcing themdownwardly when they are over the shoe bottom, the link I54 is pivotallyconnected at its upper end to across-rod I56 (Fig. 2) the opposite endsof which lie in vertical slots I58 formed in the lower ends ofa pair oflinks I60. At their upper ends these links are connected to 'a cross-rodI62 mounted in ears I64 formed on the lower-end of the slide I42.Springs I 66 connected to the crossrod I56 hold it normally at the upperends of the slots I58. Accordingly, depression of that arm of thetreadle on which the operator rests the forepart of his foot serves toraise the slide I42 through the link I54,the cross-rod I56, the pair oflinks I60 and the cross-rod I62.

:Secured to a bracket I 68 on the frame is a vertical cylinder I10 inwhich is a piston I12 (Figs. 7. and 8) provided with a diametricallyreduced portion I14 extending upwardly through a bore in a cylinder headI16 and having at its upper end a vertical slot I18 through whichextends the cross-rod I62 (Fig. 2). Extending downwardly through thepiston I12 from near the upper endof its reduced portion I14 is a bore Iin which is slidingly mounted a tubular valve I82 extending downwardlythrough'a lower cylinder'head I84. Threaded on the lower end of thevalve is a coupling I86 (Fig. 2) and threaded in this coupling isa stemI88 by which the valve is connected to the cross-rod I56. Communicatingwith a port I90 in the cylinder head I16 is a tube I92 which leads froma pump I94driven The pump receives fluid, preferably light oil, from areservoir or sump I98 and delivers it through the tube I92 to anannularchamber 200 in the cylinder I10 above the larger portion of the pistonI12, the fluid in this chamber being thus maintained under pressure atall times. It will be understood that the excess fluid delivered by thepump returns to the sump past a spring-controlled relief valve (notshown). Initially the piston I12 is in its lowest position (Fig. 7) witha hollow cap 202 secured to its lower end in engagement with thecylinder head I84.

Formed in' the larger portion of the piston I12 are four inclined ports204 (Figs. 6 and 7) communicating at their lower ends with horizontalports 206 in the piston, and these horizontal ports are at all times incommunication with an annular chamber 208 in the valve I82.

Four other horizontal ports 2I0 in the piston below the piston. Thevalve I82 has therein a bore 2I4 extending downwardly through itfrom'near its upper end and communicatin through ports 2I6 and 2I8 withan annular chamber 220 around the valve. At its lower end the bore 2I4in the valve is in communication through the coupling I86 with aflexible tube 222' (Fig. 2) leading to the sump I98. To permit theescape of fluid which may leak-pastthe valve I82 into the portionof'ithe bore I80 above 3' 9 to by the operatona fluid-operated memberfor moving the wipers reversely heightwise of the last by fluid pressureto increase their pressure on the upper-after they have wipedit-inwardly over the bottom of the last, said fluid-operated memberbeing mounted to move heightwise of the last with the wipers when thewipers are moved -to move said wipers, a fluid-:operated member 'for mnet e w pe s. r ve e y he i f the 'last by fluid pres ure to increa etheir pre sure -onv the upper atter they have :wiped it inwardly overthe -bottom of the l ast, said fluid-operated "memberbeing mounted tomove heightwise of the last with the wipers when the wipers are moved bythe operatorjnthat direction, a valve for applying pressure to saidfluid-operated membertomove it heightwiseof the last as the vw p rs reump esi he Operator, n means providing for lost motion between saidfluid-operated member and the wipers to permit limited movement of thatmember heightwise of the last relatively to the wipers, said valve beingconstructed and arranged to interrupt the flow of fluid acting on saidfluid-operated member in response to such movement of that memberrelatively to the wipers and thereby to prevent the fluid-operatedmember from acting on the wipers in the wiping of the upper heightwiseof the last.

3. In a lasting machine, wipers for wiping the marginal portion of anupper about the toe end of a last inwardly over the bottom of the last,said wipers being mounted for movement heightwise of the last to wipethe upper first in that direction, a treadle movable by the operatorthus to move said wipers, a fluid-operated member for moving the wipersreversely heightwise of the last by fluid pressure to increase theirpressure on the upper after they have wiped it inwardly over the bottomof the last, said fluid-operated member being mounted to move heightwiseof the last with the wipers when the wipers are thus moved by thetreadle, and valve means controlled by the treadle for applying to saidfluid-operated member only such fluid under pressure as to move it idlyheightwise of the last as the-wipers are moved in that direction by thetreadle.

4. In a lasting machine, wipers for wiping the marginal portion of anupper about the toe end of a last inwardly over the bottom of the last,said wipers being mounted for movement heightwise of the last to wipethe upper first in that direction, a member movable by the operator thusto move said wipers, a fluid-operated piston for moving the wipersreversely heightwise of the last by fluid pressure to increase theirpressure on the upper after they have wiped it inwardly over the bottomof the last, said piston being mounted to move heightwise of the lastwith the wipers when the wipers are thus moved by said member, a valvemovable by said member for applying fluid pressure to said piston thusto move it heightwise of the last as the wipers are moved in thatdirection by said member, and

on 1th'e1upper after they have 'overthebottom of the last, said pistonbeing mounted to move heightwise of gwipers when'the wipers are thusmoved by the treadle, a valve movable initially by said treadle for-applying fluid pressure to said piston to move itheightwise of the'lastas the wipers are moved means vproviding tor lost motion between saidpiston and the wipers to permit limited movement of the pistonheightwise 'of the last relatively to the wipers, the piston beingformed to cooperate with said valve to interrupt the flow of fluid foroperatingthe piston within the range'of such lost motion and thereby torender the piston ineffective on the wipers inthe wiping of the upperheightwise of the l'asti v '5. alasting'jmachine, wipers for wiping the'mar'ginal'portion or an upper about the toe end of a last]inwardlyoverthe bottom of the last,

lsaid wipers beingmounted for movement heightwise or the last to wipethe upper first in that direction, a treadlemovable by the operator thusto move'jsaid pwipers, afluid-operated piston for Imo g 'the pwipers freversely heightwise of the last jbyiflu d pressure to increase theirpressure wiped it inwardly the last with the in that direction by thetreadleand further movable by the treadle heightwise of the last withpistontqma'intainsuch pressure on the piston, ;and=-m ea ns providingfor lost -piston' and'the'wiper s to permit limited movemotion' betweensaid ment of the piston heightwise of the last relatively to the wipers,the piston being formed to cooperate with said valve to interrupt theflow or fluid for operating the piston within the range or such lostmotion and thereby to render the piston ineffective on the wipers in thewiping of the upper heightwise of the last.

6. in a, lasting machine, wipers for wiping the marginal portion or" anupper about the toe end of a last inwardly over the bottom of the last,sa d wipers being mounted for movement heightw se of the last to wipethe upper first in that direction, a treadle movable by the operatorthus to move said wipers, a fluid-operated piston for moving the wipersreversely heightwise of the mounted to move heightwise of the last withthe wipers when the wipers are thus moved by-the treadle, a valve insaid piston movable by the treadle for applying nuid pressure to thepiston thus to move it heightwise of the last as the wipers are moved inthat direction by the treadle, an means providing for lost motionbetween said piston and the wipers to permit limited movement of thepiston heightwise oi the last relatively to the wipers, the pistonhaving therein one or more passageways to be closed by said valve forinterrupting the flow of fluid I'or operating the piston within therange of such lost 1611332211 and tflor thereby rendering the pistoniniveon ewi ersint heightwise of the last. he Wlpmg OI me upper 7. In alasting machine, wipers for i marginal portion of an upper about tlYe tii e e r i of a last inwardly over the bottom of the last said wipersbeing mounted for movement height wise of the last to wipe the upperfirst in that direction, a member movable in one direction by theoperator thus to move said wipers, a fluidoperated member for moving thewipers reversely heightwise oi the last by fluid pressure to increasetheir pressure on the upper after they have wiped it inwardly over thebottom of the last, and a

